If the half-life of a decaying isotope is 10 years, which statement is true after 10 years? A. there are more parent nuclei than daughter nuclei in a sample
B. The relative numbers of atoms cannot be determined
C. There are more daughter nuclei than parent nuclei in a sample
D. The numbers of parent nuclei and daughter nuclei in a sample are equal

the answer is neither ball has a charge.

because if they were both positively charged, they will repel each other.

if they were positively and negatively charged, they will seek.

heats surface water up

no. bullets are macro objects. wave nature is for light waves, extremely tiny particles. if a light particle was the size of your finger, the bullet would be the size of the universe. so basically, that huge difference in size makes the wave nature of matter insignificant.